What Makes You Beautiful was the debut single for One Direction, released in their album, Up All Night, in 2011. The upbeat riff is similar in style to the song Summer Nights from Grease among others. What Makes You Beautiful was certified quadruple platinum in the US, and has sold over 5 million copies since its release.

Lyrics:
You’re insecure
Don’t know what for
You’re turning heads when you walk through the door
Don’t need make-up, to cover up
Being the way that you are is enough

Everyone else in the room can see it
Everyone else but you

Baby you light up my world like nobody else
The way that you flip your hair gets me overwhelmed
But when you smile at the ground it ain’t hard to tell
You don’t know, oh oh
You don’t know you’re beautiful
If only you saw what I can see
You’ll understand why I want you so desperately
Right now I’m looking at you and I can’t believe
You don’t know, oh oh
You don’t know you’re beautiful, oh oh
That’s what makes you beautiful

So come on, you got it wrong
To prove I’m right, I put it in a song
I don’t know why, you’re being shy
And turn away when I look into your eye eye eyes

Everyone else in the room can see it
Everyone else but you

Baby you light up my world like nobody else
The way that you flip your hair gets me overwhelmed
But when you smile at the ground it ain’t hard to tell
You don’t know, oh oh
You don’t know you’re beautiful
If only you saw what I can see
You’ll understand why I want you so desperately
Right now I’m looking at you and I can’t believe
You don’t know, oh oh
You don’t know you’re beautiful, oh oh
That’s what makes you beautiful

Baby you light up my world like nobody else
The way that you flip your hair gets me overwhelmed
But when you smile at the ground it ain’t hard to tell
You don’t know, oh oh
You don’t know you’re beautiful

Baby you light up my world like nobody else
The way that you flip your hair gets me overwhelmed
But when you smile at the ground it ain’t hard to tell
You don’t know, oh oh
You don’t know you’re beautiful
If only you saw what I can see
You’ll understand why I want you so desperately
Right now I’m looking at you and I can’t believe
You don’t know, oh oh
You don’t know you’re beautiful, oh oh
You don’t know you’re beautiful, oh oh
That’s what makes you beautiful